日常生活中各种塑料制品已被广泛应用，请分析使用塑料的利与弊．_爱下问搜题

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问题问答题

日常生活中各种塑料制品已被广泛应用，请分析使用塑料的利与弊．

答案

利：塑料一般不导电，不导热，是良好的绝缘体

弊：大部分塑料不腐烂，也不能被细菌分解，容易造成白色污染

填空题

从方框中选择适当的选项填入短文中的横线上，使短文通顺、完整。选项中有两项是
多余选项。

A. because B. doctor C. terribly D. said E. so F. in
G. carefully H. on I.illness J. showed K. worried L. have

     Mr Harris lived 1.________ a small house by himself.  He was always 2. ________ about what
he ate and drank, and he never went out when the weather was cold.  He was always afraid that he
was getting 3. ________111, so he often went to his 4. ________, andthe doctor was getting very
tired of (厌烦) him, 5. ________he had more other work to do.
    Then one day Mr Harris hurried into the doctor's office and told him he was sure he had a terrible
6. ________, which he had read about in the newspaper.  He 7. ________the doctor the article.
The doctor read it 8. ________and then said,   "But, Mr Harris, people don't know when they
9. ________ this illness!  And they feel just well. ,,
     "Oh, my goodness," 10. ________Mr Harris.   "I thought so. That's just what I feel! "

填空题

以下程序运行后的输出结果是【12】。
main()
char a[]="123456789",*p; int i=0；
p=a；
while(*p)
if(i%2==0) *p=’*’;
p++；i++；

puts(A) ；